User scripts & styles just not working at all

Frontend features, tweaks, scaleing

I tried Tempermonkey, User JS and CSS Chromium extensions a lot. Giving opportunity to the block title. The main problem is, that can not support it all the browser at the same. I did an experiment, here it is:

Configuration

I wanted an environment device wide.

For the user script & style to fit into every cirumstances.

• An Android device
• A PC with Windows
• A PC with Linux

At the first. Chcking browsers and checking extension supports, but it was not easy.

I have choosen Edge browser almost fit my needs: it is available on all three mentioned platorms and an important special ingredient also: Chromium extensions also available.

Development

I did what I have to. Tried Tempermonkey, create a Github Gists to store the code. Handling libs also working that way. The code just prepared.

Testing

But this is the worst part.

1. A lot of time for checking enviroments
2. A lot of configuration reaching exact status of on each enviroments
3. Debugging also insane
4. Handing issues results testing again and again
5. … by copying the JS & CSS files again
6. It’s not for me, probably not for anybody. It’s an insane.

Get the truth about this

Actaully telling the truth, user scripts and styles not going anywhere, a local representation of an app is clever but useless.

apps, experiment, local, solutions, userscript, userstyles, web — Jun 20, 2026